Quality/Value Comparison of 1911 Conversions

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Quality/Value Comparison of 1911 Conversions

Post by gregg28 on Thu Mar 10, 2016 2:24 pm

I have several 22 conversions. They all shoot well, are reliable and accurate, and they all feel good. I shoot them all well (Bullseye). My question is, which is better? Are there significant differences in quality? Does on have a part that tends to break more frequently? I am not looking for philosophical answers like "the one you like best, " or "you answered your own question." Is there a difference between them?

1) Marvel Precision
2) Old Marvel (pre Marvel Precision)
3) Marvel Pro (Advantage Arms)
4) Nelson

I think that my real question is "how good is the Marvel Pro? It is a great barrel (<0.5"@50 yds), but it is built on an AA Slide.

Any insight is appreciated.
Thanks,
Gregg

http://i1277.photobucket.com/albums/y500/gregg26/Conversions_zpsbv3axjif.jpg


Last edited by gregg28 on Thu Mar 10, 2016 6:20 pm; edited 1 time in total

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Re: Quality/Value Comparison of 1911 Conversions

Post by james r chapman on Thu Mar 10, 2016 3:39 pm


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Re: Quality/Value Comparison of 1911 Conversions

Post by C.Perkins on Thu Mar 10, 2016 5:08 pm

I only have one, it is all I have ever needed.
Marvel unit 1 on a SA lower using GSG magazines.
No lock back and have to slingshot the slide to load, no big deal if you understand the operation of your pistol.
It just runs and runs on CCI-SV, Center X and Eley.
Will just keep using it cause no reason to change.
YMMV

Clarence




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Re: Quality/Value Comparison of 1911 Conversions

Post by jmdavis on Fri Mar 11, 2016 8:40 am

Shoot them till you wear them out.

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Re: Quality/Value Comparison of 1911 Conversions

Post by DavidR on Fri Mar 11, 2016 9:23 am

If just between what you listed, Nelson by far is better than anything the current marvel company is producing and the nelson is a updated version of all those others but IMO you left out the "best" one, Chambers Custom, one of his conversions was just used to break a long time NRA record. More expensive than the rest but the best most always is

http://chamberscustom.com/22-conversion-units/

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Re: Quality/Value Comparison of 1911 Conversions

Post by Christopher Miceli on Fri Mar 11, 2016 12:29 pm

gregg28 wrote:I have several 22 conversions. They all shoot well, are reliable and accurate, and they all feel good. I shoot them all well (Bullseye). My question is, which is better? Are there significant differences in quality? Does on have a part that tends to break more frequently? I am not looking for philosophical answers like "the one you like best, " or "you answered your own question." Is there a difference between them?

1) Marvel Precision
2) Old Marvel (pre Marvel Precision)
3) Marvel Pro (Advantage Arms)
4) Nelson

I think that my real question is "how good is the Marvel Pro? It is a great barrel (<0.5"@50 yds), but it is built on an AA Slide.

Any insight is appreciated.
Thanks,
Gregg

http://i1277.photobucket.com/albums/y500/gregg26/Conversions_zpsbv3axjif.jpg


 those all yours gregg?  If so you should take them apart and give us some side by side pictures =]

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Re: Quality/Value Comparison of 1911 Conversions

Post by Jack H on Fri Mar 11, 2016 2:39 pm

I hane gone through owning conversions by Marvel Precision, Advantage Arms, and Nelson.  All fit and ran on different lowers. 

The MP included an early non-lockback unit of the era where the extractor would eventually eat into the chamber.  And also the steel lockback model.  Both were very accurate with .6 or smaller MP test buttons.  Although I could never duplicate that on the Ransom.  Best average was 1" with Eley.  Most everything else was 1.5 -2" getting what you paid for.  Both gave me some jams.  And I find I have to have a lockback (don't make this an issue here) and I did not care for the recoil feel of the steel slide. 

The AA units included the early models that shot great but broke the slide stop insert twice.  I have one AA now it has the newer rectangular side plate as a stop insert.  It has a barrel only from Bob Marvel with a .4 test from Bob.  Shoots great but I cannot duplicate the .4 test.  Again about +/-1" is the best Ransom I can do. So far so good.  I also had an AA from Bob Marvel called the Custom Pro.  But I sold it.  The AA with the BM barrel shoots great and I plan on keeping it.

The Nelson units are all great, accurate and have not jammed at all.  One Nelson is the Bob Marvel Custom Pro II.  It's also great.  The BMCPII came with a good test group but I do not recall the number.  Again my best Ransom groups are +/- 1" with Eley. 

From my hand all the units shoot fine except the occasional jams with the Marvel Precision.  Less jams with the AA and never with the Nelson.

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Re: Quality/Value Comparison of 1911 Conversions

Post by Christopher Miceli on Fri Mar 11, 2016 3:11 pm

I'm guessing they used a fixed rest of some sort that clamps around the front of the slide.

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Re: Quality/Value Comparison of 1911 Conversions

Post by rich.tullo on Sun Mar 27, 2016 3:12 am

Ok here is the scoop on the Nelson 22LR. I have shoot everyone made, Kimber, Marvel, and Advantage Arms by Bob Marvel. 


This Nelson is very good. Almost as good as the Chambers SSG but cheaper ($400 vs +$1000), and hands down better than Marvel Industries ($100 more). I like the weight with steal rings the Nelson is as heavy as a 45acp. 1St 50 rounds were flawless. The slide is not holding open on the last round but that is not an issue as far I am concerned as long as it is printing. , I think the last round opens up the group a little.  


Now for my secret for making sure these things are as accurate as possible. 1911 mag catches are not created equal some are 100th high, and some are a 100th low. The height does not matter with large calibers but it does matter a lot with 22lrs. There are two fixes to this issue. 1) You can fit the mag to the upper/lower set up or 2) the better and more expensive option (cheaper in the long run) get mag catches that are higher (easier to find) and lower (dawson has them). Then change the catch if necessary when you change the upper. The gun may run fine with the wrong mag catch but the issue for competition is the tip of the bullet may catch the chamber on the way into battery and damage the bullet. Sometimes its very small and sometimes its larger. This Nelson was running a low one ( because I built this for a AA) and was printing in the 25 yard 10 ring off hand, with the right higher catch the x ring.I don't have a ransom rest but my guess it would have printed under 2 inches at fifty yards and now its printing under an inch.

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Re: Quality/Value Comparison of 1911 Conversions

Post by 10sandxs on Sun Mar 27, 2016 6:51 am

I have an early marvel, circa 1995. It started life as a non lock back unit, but the slide cracked and I had it fitted with the steel slide lock back. It has shot HM scores, but I'm starting to have some issues with it. If I oil the ammo (all ammo in the mag), it runs just fine. If I dont, I get slide over rim with bullet lodged on feed ramp failure. I'm using gsg mags but kimber plastic, marvel plastic, and Promag plastic all have the same issue to a greater or lesser extent... I gave up on metal mags long ago...

Any thoughts on how to resolve?

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Re: Quality/Value Comparison of 1911 Conversions

Post by Gunsnjeeps on Sun Mar 27, 2016 7:48 am

Assuming same frame since 1995 and no burrs on frame or slide, I'd look into the recoil spring weakening to the point it can't pull the slide and bullet forward. I would doubt ramp wear but it would be a place to look also.

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Re: Quality/Value Comparison of 1911 Conversions

Post by 10sandxs on Sun Mar 27, 2016 7:58 am

Yes, same frame. Ramp and chamber were first things I looked at, both look good. I was thinking if anything the spring was too strong as the round doesn't seem to be getting high enough to be grabbed by the slide, or the slide isn't comming back far enough to grab the rim...

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Re: Quality/Value Comparison of 1911 Conversions

Post by SW-52 on Sun Mar 27, 2016 9:33 am

james r chapman wrote:
beautiful pistols!

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Re: Quality/Value Comparison of 1911 Conversions

Post by SW-52 on Sun Mar 27, 2016 9:36 am

C.Perkins wrote:I only have one, it is all I have ever needed.
Marvel unit 1 on a SA lower using GSG magazines.
No lock back and have to slingshot the slide to load, no big deal if you understand the operation of your pistol.
It just runs and runs on CCI-SV, Center X and Eley.
Will just keep using it cause no reason to change.
YMMV

Clarence



beautiful pistol!

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Re: Quality/Value Comparison of 1911 Conversions

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